JPS6041380A - Television receiver - Google Patents

Abstract

PURPOSE:To prevent the color blurring of a color picture due to oscillation by fixing a cathode-ray tube through vibration proof rubber. CONSTITUTION:The color cathode-ray tube 1 is attached to the prescribed position of a cabinet 4 through oscillation-proof rubber 5. In this case, the free end of a CRT holder 4a consisting of a plate which is attached to the cabinet 4 as one body and has a channel-shaped section is arranged between a funnel part 1b and an ear part 2 of the cathode-ray tube 1, and the columnar oscillation-proof rubber 5 is attached between the holder 4a and the ear part 2 so that the axial direction of the rubber 5 is paralleled with the vertical scanning direction of the cathode-ray tube 1. consequently, when the oscillation from a large-diameter and large-output speaker is transmitted to the cabinet 4, this vibration is hardly transmitted to the cathode-ray tube 1.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a television receiver using, for example, a high-definition color shadow tube.

BACKGROUND ART AND PROBLEMS Conventionally, color cathode ray tubes have been fixed by screwing the so-called ears provided at the four corners of the panel directly to a cabinet or the like.

In the internal structure of a color cathode ray tube, for example, in the case of an aperture grill type in-line type so-called Trinitron tube (trade name), a frame on which a blind-shaped aperture grill for color selection is stretched is attached to the panel part by three or four springs. held inside. The positional relationship between this aperture grill and the panel section requires accuracy on the order of micro-copies, and any deviation in this positional relationship will result in color misregistration in the color image.

On the other hand, speakers are generally screwed to the cabinet, and in order to improve sound quality, there is a tendency for speakers with large diameters and high outputs to be used as resonance boxes.

For this reason, the vibrations from the speaker are transmitted to the color cathode ray tube through the cabinet, causing the aperture creel to resonate.
There is a problem in that the positional relationship between the aperture grill and the panel section is misaligned, resulting in color shift in the color image. In particular, in open high-definition tubes in which the width and spacing of aperture grilles for color selection are narrowed to one-third, or the color shift due to the resonance of the aperture grills, is a more important problem.

OBJECTS OF THE INVENTION In view of the above, an object of the present invention is to provide a television receiver that prevents color shift in color images caused by photographing a cabinet or the like.

Summary of the Invention The present invention is a television receiver in which a cathode ray tube is fixed via a vibration-proof rubber. According to the television receiver of the present invention, it is possible to prevent color shifts in color images due to vibrations of a cabinet, etc. I can do it.

Embodiment Hereinafter, an embodiment of the television receiver of the present invention will be described with reference to the drawings.

1 to 3, (11 indicates a color cathode ray tube, and the four corners of the panel portion (1a) of this color cathode ray tube (1) are provided with ear portions (2) for attaching this color cathode ray tube +11, respectively. ) is provided in the funnel.
The cross section is parallel to the tube axis direction of the IC). (3
) is the sealing part of the force 2-yin f a 'W fl+.

This color cathode ray tube (11) is installed at a predetermined position in the cabinet (4) via the anti-vibration rubber (5). In this case,
+4) A cylindrical anti-vibration rubber (5) is attached between the holder (4a) and the ear (2) from a plate with a U-shaped cross section that is attached to the K integrally.
) is installed parallel to the vertical scanning direction.

The vibration isolating rubber (5) will now be further explained with reference to FIG. 4. The vibration-proof rubber (5) has a rubber hardness of 40 to 7, for example.
For example, in the case of a color cathode ray tube with a diameter of 13 inches, rubber (5
a), and two disc-shaped metal fittings (5a) each provided on both bottom surfaces of this rubber (5a) and each having a bolt (5) on the opposite side to the surface in contact with the rubber (5a). 5C).

(6a) and (6b) are the anti-4Fz com (51 is the ear part (
These nuts are adapted to be fixed to the CRT holder (4a) and the CRT holder (4a). The rest of the structure is the same as before.

! According to this configuration, when vibration from a large-diameter, high-output speaker is transmitted to the cabinet (4), the vibration isolating rubber (
5), this vibration is hardly transmitted to the color cathode ray tube fil attached to the cabinet (4). Therefore, the color cathode ray tube (
The aperture grill 11 does not resonate, and color shift in color images due to vibrations of the cabinet (4) etc. is prevented.

As described above, according to the television receiver of this example, since the color cathode ray tube +11 is fixed via the root-preventing rubber (5), it is easier to install the cabinet than the speaker, etc. +41
When the K vibration is transmitted, this vibration is transmitted to the color cathode ray tube (1) from the anti-vibration rubber (51K).K is hardly transmitted, and the aperture grill (or shadow mask) of the color cathode ray tube (1) is There is no resonance, and there is an advantage that the color shift of the color image due to the vibration of the cabinet (4) etc. can be prevented.Incidentally, instead of the 1 cabinet (4), a color cathode ray tube (11) is installed in the speaker box as described above. Attach 150 to the speaker.
~6001 (frequency sweep mark sweep of the signal of z,
Color shade 'rit11i! When the vibrations of the tube (11) were picked up and recorded with a vibration pickup, the results shown in Figures 5 to 8 (
A case in which the cathode ray tube fi+ is attached via a vibration isolating rubber (5) is shown by a solid line, and a case similar to the conventional case in which the vibration isolating rubber (5) is not used is shown by a dotted line. ) were obtained. That is, in each of FIGS. 5 to 7, the horizontal axis represents the frequency of the signal, and the vertical axis represents the degree of vibration and the gravitational acceleration G.
FIG. 5 shows the vibration of the color cathode ray tube (1) in the horizontal scanning direction, FIG. 6 shows the vibration in the vertical scanning direction, and FIG. 7 shows the measurement results of the vibration of the color cathode ray tube (11) in the depth direction. As is clear from FIGS. 5 to 7, nearly perfect to good results were obtained in each of the horizontal scanning direction, vertical scanning direction, and depth direction of the color cathode ray tube (1). The frequency of the signal is taken as the frequency of the signal, and the amplitude of the vibration of the aperture grill of the color cathode ray tube (1) is taken as the vertical axis. According to the example, an amplitude of 1 μm was measured near 420H2, and the amplitude of the vibration of the aperture grill was improved to less than 1/10 compared to the conventional one, and good results were obtained. Connect the ears (2) of the cathode ray tube (1) to the funnel part (1b).
) side parallel to the tube axis direction of the neck part (IC), and position the KC T-holder (4a) between the ear part (2) and the funnel part (1). ) and the CRT halter (4a) are attached by inserting the anti-vibration rubber (5).
) and the CFtT holder (4a) can be prevented from protruding outward beyond the panel portion (1a), which has the advantage that a smaller television receiver can be obtained.

Further, FIGS. 9 and 10 show other embodiments of the television receiver of the present invention. In FIGS. 9 and 10, parts corresponding to those in FIGS. 1 to 4 are designated by the same reference numerals, and detailed explanation thereof will be omitted.

The one shown in FIGS. 9 and 10 has an ear section (2) provided in the neck section in a direction perpendicular to the tube axis direction, similar to a general color cathode ray tube, and the anti-vibration rubber (5) shown in FIG. 4 above. via CR
Attach to the T holder (4a). In this case, anti-vibration rubber (
5), the compression direction, ie, the axial direction, is parallel to the depth direction of the color cathode ray tube (1). The rest of the structure is the same as that of the embodiment shown in FIGS. 1 to 4 above. - It is easy to understand that the same effects as the embodiments shown in FIGS. 1 to 4 described above can be obtained in this embodiment as well. Incidentally, similar to the embodiments shown in FIGS. 1 to 4 above, color cathode ray tubes (1, 1) are attached to the speaker box via anti-vibration rubber (5) as shown in this example.
Sweep the signal of 150 to 6001 (z) to the speaker,
The vibrations of the color cathode ray tube (1) were picked up and recorded using a vibration pickup, as shown in Figures 11 and 12 (the solid line shows the case where the color cathode ray tube (1) is attached via the vibration isolating rubber (5) as in this example). , the case similar to the conventional case in which the anti-vibration rubber (5) was not used is shown by the dotted line, respectively.) Results as shown in VC were obtained.

That is, in FIGS. 11 and 12, the horizontal axis represents the frequency of the signal, and the vertical axis represents the gravitational acceleration G as the degree of vibration.
The figure shows the vibration of the color cathode ray tube (1) in the horizontal scanning direction, and FIG. 12 shows the measurement results of the vibration of the color cathode ray tube (1) in the depth direction. As is clear from FIGS. 11 and 12, there has been a significant improvement in the horizontal direction of the color tube (1), and a considerable improvement, although not completely, in the depth direction.

Furthermore, FIGS. 13 and 14 show other embodiments of the television receiver of the present invention. In FIGS. 13 and 14, parts corresponding to those in FIGS. 9 to 10 are designated by the same reference numerals, and detailed explanation thereof will be omitted.

What is shown in Fig. 13 and Fig. 14 is a pair of rubbers (5d) that have a convex shape when viewed from the side and have a central hole (5f) with a --shaped center hole (5f) that widens toward the convex side. and (5e
) with their convex sides pressed against each other (5)
is inserted between the ear part (2) and the CRT holder (4a),
Fix with bolt (7a) and nut (7b)! TSKI
, is something. In this case, the ears (2) are made of anti-vibration rubber (5
) is fitted into the abutted convex portions of the rubbers (5d) and (5e), and is held by the rubbers (5d)' (5e).

Also, the rubber (5d) (5e) of the vibration isolating rubber (5) has a center hole (
5f) Since it has a K taper, it is a fixing bolt (7a) K is approximately touching, and a fixing bolt) (7a)
The conductivity of vibration between the ear part (2) held by the rubber (sd) (se) is made relatively small. The rest of the structure is the same as the embodiment shown in FIGS. 9 and 10 above.

It is easy to understand that the same effects as the embodiments shown in FIGS. 9 and 10 described above can be obtained in this embodiment as well. Incidentally, similar to the embodiments shown in FIGS. 9 and 10 above, a color cathode ray tube (1) is attached to the speaker box via the anti-vibration rubber (5) as shown in this example, and a signal of 150 to 600 Hz is transmitted to the speaker. Sweep and
The vibrations of the color cathode ray tube (1) were picked up and recorded using a vibration pickup and are shown in Figs. Results were obtained as shown in the solid line and the dotted line for the case similar to the conventional case in which the anti-vibration rubber (5) was not used.

That is, in FIGS. 15 and 16, the horizontal axis represents the signal frequency ff.
T! 5. Gravitational acceleration G is taken as the degree of vibration on the vertical axis. Figure 15 shows the vibration in the horizontal scanning direction of the color cathode ray tube (1), and Figure 16 shows the vibration in the depth direction of the color cathode ray tube (1). The measurement results are shown. As is clear from FIGS. 15 and 16, although the color cathode ray tube (11) is not improved in the depth direction, it is considerably improved in the horizontal scanning direction, although not completely.

In the above-mentioned embodiments, the vibration isolating rubber (5) shown in FIG. 4, FIGS. A disk-shaped metal fitting (5C) with bolts (5b) 4i1' erected on the rubber (5a) and a flange (5g) having a wider surface than this metal fitting (5C) were attached. Even if the cylindrical metal fittings (5h) and (51) are attached to the inner circumference side and the outer circumference side of the cylindrical rubber (5a), respectively, the same effect as in the above embodiment is obtained. It is easy to understand that effects can be obtained. or,
It goes without saying that the present invention is not limited to the above-described embodiments, and can take other conventional configurations without departing from the gist of the present invention.

APPLICATION EXAMPLE Although the above-mentioned embodiment has been described as an example in which the present invention is applied to a general television receiver, it is also possible to apply the present invention to cases where color cathode ray tubes are used as various types of scrapers for aircraft.

Effects of the Invention According to the television receiver of the present invention, since the cathode ray tube is fixed via vibration-proof rubber, it is possible to prevent color shifts in color images due to vibrations of the cabinet or the like.

[Brief explanation of the drawing]

FIGS. 1, 2 and 3 are route diagrams showing an embodiment of the television receiver of the present invention, and FIGS. 4, 17 and 18 are perspective views showing examples of anti-vibration rubber, respectively. , Figure 5, Figure 6
FIGS. 7 and 8 are diagrams for explaining FIGS. 1 to 3, FIGS. 9 and 10 are route maps showing other embodiments of the present invention, and FIGS. 12 is a diagram for explaining FIGS. 9 and 10, respectively, FIGS. 13 and 14 are route diagrams showing other embodiments of the present invention, and FIGS. 15 and 16 are diagrams for explaining FIGS. FIG. 15 is a diagram for explaining FIG. 15 and FIG. 14; (1) is a color cathode ray tube, (2) is an ear part, (4) is a cabinet, (4a) is a CRT holder, and (5) is a vibration isolating rubber. Fig. 1 Fig. 2 L'Lj ) l Happy 4 Fig.-t-+r Fig. 6 Item 71 Hz → hz Fig. 13 Fig. 1! Figure az - Figure i6 H7 → Figure 17 Procedural Amendment 1, Indication of the Case 1982 Patent Application No. 149471 2, Title of Invention Television Receiver 3, 'F One Person Stopping Relationship with the incident 1. , permission 1 customer representative N, i: official r“1 song male 5, correction i 1〒
With LI of Ordinance, Showa year, month 1” 6, increased due to oil stoppage.
4-Contents of Invention No. 8, Nichi j1-8 (1) The scope of claims in the specification is amended as shown in the attached sheet. (2) Same, page 3, line 1 and page 11, last line “Vibration-proof rubber”
Correct each statement to "elastic body". (3) Ibid., page 11, line 10, ``It can be understood.Also,
The phrase "The present invention is" is corrected as follows. "Understandable": One. Furthermore, in the above embodiment, a case was described in which a vibration isolating rubber (5) was used as the elastic body, but even if a metal spring is used instead of this vibration isolating rubber (5), the same effect as in the above embodiment can be obtained. It is easy to understand that the present invention provides a ten vision receiver in which the above claims are fixed with an elastic tube interposed therebetween.

Claims (1)

[Claims] A television receiver characterized in that a tangent-proof wire tube is fixed via vibration-proof rubber.